Email Setup Wizard

iCloud+ Custom Email Domain + Squarespace Domains

Set up iCloud+ Custom Email Domain email on Squarespace Domains

The records iCloud+ Custom Email Domain needs, written with the field names Squarespace Domains uses (Name, Mail Server, Text, Data), in the order to add them.

  • 5 steps
  • 6 DNS records
  • Sources checked October 21, 2026

Before you start

  1. Have your iCloud+ Custom Email Domain account ready. Some values are unique to your account and come from the iCloud+ Custom Email Domain.
  2. Open DNS at Squarespace Domains: Open the domains dashboard (account.squarespace.com/domains). Click your domain. Click DNS, then DNS Settings.
  3. Keep both tabs open and add the records below one at a time.

Records to add

Copy each value with the button next to it. Rows marked “Copy from iCloud+ Custom Email Domain” are unique to your account.

Domain verification Proves you own the domain Type TXT Name @ Value Copy from iCloud+ Custom Email Domain Priority n/a TTL 4 hours
MX records Where incoming email goes Type MX Name @ Value mx01.mail.icloud.com Priority 10 TTL 4 hours
MX records Where incoming email goes Type MX Name @ Value mx02.mail.icloud.com Priority 10 TTL 4 hours
SPF record Which servers may send as you Type TXT Name @ Value v=spf1 include:icloud.com ~all Priority n/a TTL 4 hours
DKIM A signature on every message Type CNAME Name sig1._domainkey Value sig1.dkim.yourdomain.com.at.icloudmailadmin.com Priority n/a TTL 4 hours
DMARC record What to do with fakes · recommended Type TXT Name _dmarc Value v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com Priority n/a TTL 4 hours

Step by step in Squarespace Domains

Verify your domain

Your email provider needs proof that you control this domain before it accepts email for it.

Type
TXT
Name
@
Text
Copy it from iCloud+ Custom Email Domain (see below)

Where to find your value

Go to icloud.com/icloudplus, select Custom Email Domain, then Add a domain you own. In step 3, select View to see your personal TXT record.

In Squarespace Domains

  1. Scroll to Custom Records and click Add record.
  2. Re-enter your password (or confirm with two-factor authentication) if asked, then click Continue.
  3. Set Type to TXT, then fill in Name and Text.
  4. Click Save.

Point your MX records

MX records tell every other mail server where to deliver email for your domain. They must point to your provider and nowhere else.

Type
MX
Name
@
Priority
10
Mail Server
mx01.mail.icloud.com
  • Apple's page writes these with a trailing period (mx01.mail.icloud.com.). Use whichever form your DNS host expects.
Type
MX
Name
@
Priority
10
Mail Server
mx02.mail.icloud.com

In Squarespace Domains

  1. Click Add record.
  2. Re-enter your password (or confirm with two-factor authentication) if asked, then click Continue.
  3. Set Type to MX, then fill in Name, Priority and Mail Server.
  4. Click Save. Add one record per mail server, each with its own priority.
  5. Repeat for each MX record above.

Add the SPF record

SPF is a TXT record that lists the services allowed to send email from your domain, so receivers can spot forgeries.

Type
TXT
Name
@
Text
v=spf1 include:icloud.com ~all

In Squarespace Domains

  1. Scroll to Custom Records and click Add record.
  2. Re-enter your password (or confirm with two-factor authentication) if asked, then click Continue.
  3. Set Type to TXT, then fill in Name and Text.
  4. Click Save.

Set up DKIM

DKIM publishes a public key so receivers can confirm your messages really came from you and were not changed on the way.

Type
CNAME
Name
sig1._domainkey
Data
sig1.dkim.yourdomain.com.at.icloudmailadmin.com

In Squarespace Domains

  1. Scroll to Custom Records and click Add record.
  2. Re-enter your password (or confirm with two-factor authentication) if asked, then click Continue.
  3. Set Type to CNAME, then fill in Name and Data.
  4. Click Save.

Add the DMARC record (recommended)

DMARC tells receivers what to do with mail that fails SPF and DKIM, and where to send reports about it.

Type
TXT
Name
_dmarc
Text
v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com
  • Apple's setup page doesn't list a DMARC record. This is the standard starting record (p=none asks receivers for no action); replace the report address with one you read.

In Squarespace Domains

  1. Scroll to Custom Records and click Add record.
  2. Re-enter your password (or confirm with two-factor authentication) if asked, then click Continue.
  3. Set Type to TXT, then fill in Name and Text.
  4. Click Save.

Check your setup

Once the records are saved, run a live check. We look up your domain in public DNS and tell you what is right, missing or wrong, with the fix in Squarespace Domains’s words.

We only read public DNS records. Nothing is stored.

Common mistakes with iCloud+ Custom Email Domain on Squarespace Domains

Leaving example.com in the DKIM target

Apple's example target is sig1.dkim.example.com.at.icloudmailadmin.com. Replace example.com with your own domain.

Squarespace Domains: Change your Squarespace login first

If you sign in to Squarespace with an address at this domain, change your account email before deleting MX records, or you could lock yourself out.

Squarespace Domains: SPF entries are merged for you

Each SPF value added as its own custom record is merged into one SPF record. Refresh the page to see the merged result. If you get a Custom records not saved error, delete the existing SPF records and add them again.

Squarespace Domains: Only one DMARC record

A domain can have only one DMARC record. Email forwarding rules add one automatically, so merge into it rather than adding a second.

Visit iCloud+ Custom Email Domain Visit Squarespace Domains

Rather have someone do it for you?

Tell us your domain and we will add and verify every record for iCloud+ Custom Email Domain on Squarespace Domains, then send you the check results.

Request done-for-you setup

iCloud+ Custom Email Domain on Squarespace Domains: questions

Where do I add iCloud+ Custom Email Domain DNS records in Squarespace Domains?

Open the domains dashboard (account.squarespace.com/domains). Click your domain. Click DNS, then DNS Settings. Add each record there, one at a time.

What goes in the Name field at Squarespace Domains?

Enter @ for records on your bare domain, such as MX and SPF. For the others, enter only the part before your domain, for example sig1._domainkey. Squarespace Domains adds your domain automatically.

Do I need to delete my existing MX records at Squarespace Domains?

Yes. Mail servers deliver to every MX record you publish, so keep only the iCloud+ Custom Email Domain MX records and delete the rest. If you sign in to Squarespace with an address at this domain, change your account email before deleting MX records, or you could lock yourself out.

Where do I get my iCloud+ Custom Email Domain DKIM record?

iCloud+ Custom Email Domain DKIM records are CNAME records whose value includes your domain, for example sig1.dkim.yourdomain.com.at.icloudmailadmin.com. Copy the exact values for your domain from the table on this page.

How long until iCloud+ Custom Email Domain email works on Squarespace Domains?

Squarespace says DNS changes can take 24 to 48 hours to update.

Sources

Every value and step on this page comes from these official pages. Dashboards change, so if something doesn’t match what you see, tell us.

iCloud+ Custom Email Domain on other hosts

Other email providers on Squarespace Domains